Earth science

Earth science

Any of several geological sciences that are concerned with the earth, its origins, and all of its various structures and physical forms and phenomena.

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Earth science > Soil science

duff mull

Earth science; Soil science

A forest humus type, transitional between mull and mor, characterized by an accumulation or organic matter on the soil surface in friable Oe horizons, reflecting the dominant ...

bay

Earth science; Soil science

(i) Any terrestrial formation resembling a bay of the sea, as a recess or extension of lowland along a river valley or within a curve in a range of hills, or an arm of a prairie ...

coefficient of linear extensibility (COLE)

Earth science; Soil science

1. The percent shrinkage in one dimension of a molded soil between two water contents, e.g. between its plastic limit to air dry. 2. Meaure of shrink-swell potential of soil.

esker

Earth science; Soil science

A long, narrow, sinuous, steep-sided ridge composed of irregularly stratified sand and gravel that was deposited by a subglacial or supraglacial stream flowing between ice walls, ...

hygroscopic water

Earth science; Soil science

Water adsorbed by a dry soil from an atmosphere of high relative humidity, water remaining in the soil after "air-drying," or water held by the soil when it is in equilibrium with ...